Chiltern Railways

Owned by DB Regio UK Limited, Chiltern Railways operates passenger train services along the M40 corridor between London Marylebone and Birmingham Snow Hill and London Marylebone to Aylesbury Vale Parkway via Amersham along the London Underground Metropolitan line. Chiltern Railways also operate as far as Kidderminster and Stratford-upon-Avon. Its franchise runs from March 2002 to December 2021.